TROY, N.Y. - The Rensselaer Polytechnic Institute (RPI) men's hockey team took No. 12/13 Harvard University into overtime in ECAC Hockey action on Friday, but the Crimson pushed past the Engineers 3-2 to remain undefeated on the season. Harvard (5-0-0, 5-0-0 ECAC Hockey) was led by Alex Gaffney's two-goal effort with Zakary Karpa adding two assists.